CN110463133B - Allocating radio channels to preferred stations - Google Patents
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- CN110463133B CN110463133B CN201880022063.3A CN201880022063A CN110463133B CN 110463133 B CN110463133 B CN 110463133B CN 201880022063 A CN201880022063 A CN 201880022063A CN 110463133 B CN110463133 B CN 110463133B
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- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W72/00—Local resource management
- H04W72/50—Allocation or scheduling criteria for wireless resources
- H04W72/56—Allocation or scheduling criteria for wireless resources based on priority criteria
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L5/00—Arrangements affording multiple use of the transmission path
- H04L5/0001—Arrangements for dividing the transmission path
- H04L5/0003—Two-dimensional division
- H04L5/0005—Time-frequency
- H04L5/0007—Time-frequency the frequencies being orthogonal, e.g. OFDM(A), DMT
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- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L5/00—Arrangements affording multiple use of the transmission path
- H04L5/003—Arrangements for allocating sub-channels of the transmission path
- H04L5/0037—Inter-user or inter-terminal allocation
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L5/00—Arrangements affording multiple use of the transmission path
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- H04W72/044—Wireless resource allocation based on the type of the allocated resource
- H04W72/0453—Resources in frequency domain, e.g. a carrier in FDMA
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- H04W—WIRELESS COMMUNICATION NETWORKS
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- H04W72/50—Allocation or scheduling criteria for wireless resources
- H04W72/51—Allocation or scheduling criteria for wireless resources based on terminal or device properties
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- H04L5/0062—Avoidance of ingress interference, e.g. ham radio channels
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Abstract
Methods, systems, and computer readable media may be operable to facilitate allocation of one or more channels to one or more preferred stations. The access point may be configured to allocate usage of one or more sub-bands of the spectrum to one or more stations. One or more subbands may be assigned to one or more preferred stations to create multiple virtual networks provided by the access point. The virtual network provided by the access point may support different authentication and encryption options. The access point may communicate with multiple stations simultaneously by transmitting and/or receiving communications simultaneously on different sub-bands.
Description
Technical Field
The present disclosure relates to allocating a wireless channel to a preferred station.
Background
Currently, a wireless radio assigns transmission opportunities to a single device at a single time. An access point may have traffic destined for several stations, but the access point is typically only able to deliver traffic to a single station at a given time. Similarly, if multiple stations have pending transmissions, the stations must contend to contend for the air, and only one station can send a communication to the access point at a given time.
Moreover, as the number and types of stations served by an access point increase, the ability to provide differentiated services to these stations has become a difficult task. In addition, legacy stations may not be able to use the entirety of the spectrum available for use by the access point, and the access point may be forced to idle some portion of the spectrum while the legacy stations are communicating. Accordingly, improvements in methods and systems for allocating transmission opportunities among multiple stations are desirable.
Drawings
Fig. 1 is a block diagram illustrating an example network environment operable to facilitate allocation of one or more channels to one or more preferred stations.
Fig. 2 is a prior art time versus channel diagram illustrating a prior art allocation of air time to a plurality of stations.
Fig. 3 is an example time versus channel diagram illustrating allocation of subbands of a frequency spectrum to one or more stations.
Fig. 4 is a block diagram illustrating an example access point operable to facilitate allocation of one or more channels to one or more preferred stations.
Fig. 5 is a flow diagram illustrating an example process operable to facilitate allocation of one or more channels to one or more preferred stations.
Fig. 6 is a flow diagram illustrating an example process that is operable to facilitate assigning stations to allocated subbands of a spectrum.
Fig. 7 is a block diagram of a hardware configuration operable to facilitate allocation of one or more channels to one or more preferred stations.
Like reference numbers and designations in the various drawings indicate like elements.
Detailed Description
Methods, systems, and computer-readable media may be operable to facilitate allocation of one or more channels or sub-bands to one or more preferred stations. The access point may be configured to allocate usage of one or more sub-bands of the spectrum to one or more stations. One or more subbands may be assigned to one or more preferred stations to create multiple virtual networks provided by the access point. The virtual network provided by the access point may support different authentication and encryption options. The access point may communicate with multiple stations simultaneously by transmitting and/or receiving communications simultaneously on different sub-bands.
Embodiments of the invention described herein may include a method comprising: (a) Receiving wireless communications at an access point, wherein the wireless communications are received from a station; (b) retrieving a station identifier from the wireless communication; and (c) output a communication to the station if the retrieved station identifier matches an identifier associated with a sub-band of a spectrum on which the access point is configured to communicate, wherein the communication indicates that the station communicates with the access point on the sub-band associated with the station identifier.
According to an embodiment of the invention, the retrieved station identifier comprises a service type identifier.
According to an embodiment of the invention, the retrieved station identifier comprises a device type identifier.
According to an embodiment of the invention, the method described herein further comprises: if the retrieved station identifier does not match an identifier associated with a sub-band of the spectrum on which the access point is configured to communicate, selecting an available sub-band of the spectrum and outputting a communication to the station, wherein the communication indicates that the station communicates with the access point on the selected sub-band.
According to an embodiment of the invention, the method described herein further comprises: (a) Whether the retrieved station identifier indicates that the station cannot accommodate sub-band communications; (b) Identifying a time interval in which the station is capable of communicating using the full spectrum; and (c) instructing any station capable of subband communication to refrain from communication that may interfere with the station.
According to an embodiment of the invention, the communication comprises configuration information associated with the sub-band associated with the station identifier.
According to an embodiment of the invention, the frequency spectrum on which the access point is configured to communicate is divided into at least two sub-bands.
According to an embodiment of the invention, the access point is configured to communicate with one or more stations simultaneously on each of the at least two sub-bands.
According to an embodiment of the invention, the method described herein further comprises: (a) Determining that the retrieved station identifier is associated with a device class, wherein the device class is designated for communication on a particular sub-band of the spectrum; and (b) wherein the communication instructs the station to communicate with the access point on the particular sub-band.
Embodiments of the invention described herein may include an access point comprising: (a) An interface configured to receive wireless communications from a station; and (b) one or more modules configured to: (ii) (i) retrieving a station identifier from the wireless communication; and (ii) output a communication to the station if the retrieved station identifier matches an identifier associated with a sub-band of a spectrum on which the access point is configured to communicate, wherein the communication indicates that the station communicates with the access point on the sub-band associated with the station identifier.
According to an embodiment of the invention, the retrieved station identifier comprises a service type identifier.
According to an embodiment of the invention, the retrieved station identifier comprises a device type identifier.
According to an embodiment of the invention, the frequency spectrum on which the access point is configured to communicate is divided into at least two sub-bands, and the access point is configured to communicate with one or more stations simultaneously on each of the at least two sub-bands.
Embodiments of the invention described herein may include one or more non-transitory computer-readable media having instructions operable to cause one or more processors to perform operations comprising: (a) Receiving wireless communications at an access point, wherein the wireless communications are received from a station; (b) retrieving a station identifier from the wireless communication; and (c) output a communication to the station if the retrieved station identifier matches an identifier associated with a sub-band of a spectrum on which the access point is configured to communicate, wherein the communication indicates that the station communicates with the access point on the sub-band associated with the station identifier.
According to an embodiment of the invention, the retrieved station identifier comprises a service type identifier.
According to an embodiment of the invention, the retrieved station identifier comprises a device type identifier.
According to an embodiment of the invention, wherein the instructions are further operable to cause one or more processors to perform operations comprising: if the retrieved station identifier does not match an identifier associated with a sub-band of the spectrum on which the access point is configured to communicate, selecting an available sub-band of the spectrum and outputting a communication to the station, wherein the communication indicates that the station communicates with the access point on the selected sub-band.
According to an embodiment of the invention, the communication comprises configuration information associated with the sub-band associated with the station identifier.
According to an embodiment of the invention, the frequency spectrum on which the access point is configured to communicate is divided into at least two sub-bands.
According to an embodiment of the invention, the access point is configured to communicate with one or more stations simultaneously on each of the at least two sub-bands.
Fig. 1 is a block diagram illustrating an example network environment 100 operable to facilitate allocation of one or more channels or sub-bands to one or more preferred stations. In an embodiment, access point 105 may route communications to and from one or more stations 110. For example, one or more stations 110 may be provided to receive video services, data services, voice services, and/or other services through one or more access points 105. In an embodiment, the access point 105 may include a gateway, a cable modem, a wireless router including an embedded cable modem, a mobile hotspot router, a multimedia over coax alliance (MoCA) node, a wireless extender, and any other device operable to route communications to and from the station 110.
In embodiments, the station 110 may include a wide variety of devices, such as televisions, mobile devices, tablets, set-top boxes, computers, thermostats or other sensors, and any other device capable of utilizing video, data, telephony, or other services.
In an embodiment, the access point 105 may route communications between the station 110 and a Wide Area Network (WAN) 115 via a subscriber network. The subscriber network may include various networks such as coaxial cable, fiber optic, twisted pair networks, wireless networks including 4G and LTE, and others.
In an embodiment, access point 105 may transmit and receive communications over one or more blocks of a predefined frequency spectrum (e.g., 2.4GHz, 5GHz, etc.), and access point 105 may simultaneously communicate with multiple stations 110 by communicating with stations 110 over multiple sub-bands of the frequency spectrum (e.g., defining channels or resource units within the channels). For example, the access point 105 may communicate a first communication to a first station over a first portion of the spectrum (e.g., a first channel), and the access point 105 may simultaneously communicate a second communication to a second station over a second portion of the spectrum (e.g., a collection of resource units within a second channel). It should be understood that each of the sub-bands of the frequency spectrum may have the same frequency bandwidth, or may have different frequency bandwidths.
In an embodiment, one or more sub-bands (e.g., channels or resource elements within a defined channel) of the spectrum of the access point 105 may be assigned to one or more preferred stations 110. One or more sub-bands may be allocated to preferred station 110, for example, by a technician, subscriber, or other entity, and/or the allocation may be made according to a predefined set of rules. Subbands may be assigned to one or more particular stations 110, one or more particular uses, or one or more particular device types. For example, access point 105 may be configured to allow a particular device, certain uses (e.g., type of service), device type, or other identifier of station 110 to communicate with access point 105 on a particular sub-band.
In an embodiment, when station 110 attempts to connect to access point 105, access point 105 may retrieve the identifier from a communication received from station 110 (e.g., a wireless communication such as an 802.11 packet). The identifiers may include an identifier specific to the station 110 (e.g., a Media Access Control (MAC) address), one or more configuration parameters associated with the station 110, a usage or service type associated with the received communication, a device type identifier associated with the station 110, and other identifiers. Access point 105 may compare the retrieved identifier to an identifier designated for using a particular sub-band. Access point 105 may output a communication to station 110 if the retrieved identifier matches an identifier designated for using a particular sub-band, where the communication instructs station 110 to output an upstream communication and/or receive a downstream communication on the particular sub-band.
In an embodiment, access point 105 may specify one or more device classes for communicating on one or more subbands. The access point 105 may create a device class based on the device type, the service type, or other parameters associated with the class of the device. For example, the access point 105 may create a device class that includes IoT devices, a device class that includes video streaming devices, and/or other device classes, and the access point 105 may designate each device class for communication on a particular sub-band. Access point 105 may associate each device class with one or more particular device identifiers (e.g., device type identifiers, service type identifiers, etc.) to be added to the device class. When station 110 attempts to connect to access point 105, access point 105 may retrieve the identifier from the communication and, using the identifier, access point 105 may associate station 110 with the device class. For example, the retrieved identifier may be a device type, service type, or other identifier, and access point 105 may associate station 110 with the device class associated with the retrieved identifier. When a station 110 is associated with a device class, the station 110 may be configured to communicate on the subband designated for use by that device class. Station 110 may be generally capable of communicating across a normal wireless frequency band, or station 110 may be advantageously designed to operate within a sub-band assignment. The frequency bandwidth of station 110 is expected to affect the station identifier transmitted with its communication.
In an embodiment, when a determination is made to instruct station 110 to communicate on a certain sub-band, access point 105 may output a communication to station 110, where the communication includes one or more configuration parameters associated with the certain sub-band. For example, configuration parameters specific to a certain sub-band may include various authentication options, encryption options, and other options.
Fig. 2 is a prior art time versus channel diagram 200 illustrating a prior art allocation of air time to a plurality of stations. In an embodiment, an access point (e.g., access point 105 of fig. 1) may communicate over a spectrum including a plurality of sub-bands (e.g., channels such as SB1, SB2, SB3, SB4, etc.). According to the prior art, an access point will use the entire spectrum to transmit or receive wireless communications, and therefore the access point will only be able to transmit or receive a single wireless communication at a given time. For example, each possible sub-band of the spectrum (e.g., sub-bands (SB) 1-4) will be occupied by a single wireless communication that is either transmitted to or received from a station (e.g., station 110 of fig. 1). According to the example allocation of air time illustrated by prior art time versus channel diagram 200, the entirety of the spectrum may be reserved for communication with stations in a first group of stations (e.g., STA1, STA 2, and STA 3) during a first time period (e.g., T1), with stations in a second group of stations (e.g., STA 4, STA5, and STA 6) during a second time period (e.g., T2), and with stations in a third group of stations (e.g., STA 7, STA 8, and STA 9) during a third time period (e.g., T3). The use of spatial multiplexing may allow an access point to communicate with more than one station during a time interval, such as T1, but the entire frequency band is still in use by each spatially distinct transmission.
Fig. 3 is an example time versus channel diagram 300 illustrating allocation of sub-bands of a frequency spectrum to one or more stations. In an embodiment, an access point (e.g., access point 105 of fig. 1) may partition a frequency spectrum into multiple sub-bands (e.g., sub-bands (SB) 1-4). An access point may allocate one or more of these subbands for carrying wireless communications to and/or from one or more particular stations (e.g., station 110 of fig. 1). For example, wireless communications may be transmitted to and/or from a given station over a subband of the frequency spectrum at multiple or all times (e.g., time periods T1-3), and access point 105 may simultaneously transmit and/or receive wireless communications to and/or from multiple stations (e.g., STAs 1-9) on different subbands. According to example time-to-channel diagram 300, access point 105 may simultaneously transmit and/or receive wireless communications to and/or from one or more stations in a first group of stations (e.g., STA1, STA 2, and STA 3) on a first sub-band (e.g., SB 1), transmit and/or receive wireless communications to and/or from one or more stations in a second group of stations (e.g., STA 4, STA5, and STA 6) on a second sub-band (e.g., SB 2), transmit and/or receive wireless communications to and/or from one or more stations in a second group of stations (e.g., STA 4, STA5, and STA 6) on a third sub-band (e.g., SB 3), transmit and/or receive wireless communications to and/or from one or more stations in a third group of stations (e.g., STA 7 and STA 8) on a third sub-band (e.g., SB 4), and/or transmit and/or receive wireless communications to and/or from one or more stations (e.g., STA 9) in a fourth sub-band (e.g., SB 4). In an embodiment, the bandwidth allocated to a sub-band supporting one or more stations may vary widely.
Fig. 4 is a block diagram illustrating an example access point 105 operable to facilitate allocation of one or more channels to one or more preferred stations. The access point 105 may include a wireless interface 405, a channel assignment module 410, and a station identification module 415.
In an embodiment, access point 105 may send communications to and receive communications from one or more stations (e.g., stations 110 of fig. 1) over wireless interface 405. Through wireless interface 405, access point 105 may transmit and receive communications over a predefined frequency spectrum (e.g., 2.4GHz, 5GHz, etc.), and access point 105 may simultaneously communicate with multiple stations 110 by communicating with stations 110 over multiple sub-bands (e.g., channels) of the frequency spectrum. For example, the access point 105 may communicate a first communication to a first station over a first portion (e.g., a first channel) of the spectrum, and the access point 105 may simultaneously communicate a second communication to a second station over a second portion (e.g., a second channel) of the spectrum. It should be understood that the communications exchanged between the access point 105 and the station 110 may include wireless communications (e.g., 802.11 packet exchanges).
In an embodiment, one or more sub-bands (e.g., channels) of the spectrum of access point 105 may be assigned to one or more preferred stations 110. The channel assignment module 410 may manage and store the assignment of one or more subbands to one or more preferred stations 110. For example, channel assignment module 410 may be configured with a device, purpose (e.g., type of service), device type, or other identifier for a station 110 that will communicate with access point 105 on a particular sub-band.
In an embodiment, when a station 110 attempts to connect to an access point 105, the station identification module 415 may retrieve an identifier from a communication (e.g., a wireless communication such as an 802.11 packet) received from the station 110. The identifiers may include an identifier specific to station 110 (e.g., a Media Access Control (MAC) address), one or more configuration parameters associated with station 110, a usage or service type associated with the received communication, a device type identifier associated with station 110, and other identifiers. The station identification module 415 may compare the retrieved identifier to an identifier designated for use with a particular sub-band. If the retrieved identifier matches an identifier designated for use of a particular sub-band, the station discrimination module 415 may output a communication to the station 110, where the communication instructs the station 110 to output an upstream communication and/or receive a downstream communication on the particular sub-band.
In an embodiment, when a determination is made to instruct station 110 to communicate on a certain sub-band, station discrimination module 415 may output a communication to station 110, where the communication includes one or more configuration parameters associated with the certain sub-band. For example, configuration parameters specific to a certain sub-band may include various authentication options, encryption options, and other options.
Fig. 5 is a flow diagram illustrating an example process 500 operable to facilitate allocation of one or more channels to one or more preferred stations. In an embodiment, access point 105 of fig. 1 may be configured with an allocation of one or more sub-bands (e.g., channels) to one or more preferred stations (e.g., stations 110 of fig. 1). Process 500 may begin at 505 when one or more subband allocation parameters are identified. For example, one or more sub-band allocation parameters may be identified by the access point 105 (e.g., at the channel allocation module 410 of fig. 4). In an embodiment, the one or more subband allocation parameters may include a default rule set for allocating subbands to stations, one or more configuration parameters and/or other parameters or settings for allocating subbands to particular stations. For example, one or more allocation parameters may assume that certain types of stations (e.g., video devices, ioT devices, etc.) are assigned to communicate on the same subband. As another example, one or more allocation parameters may assume that a subband allocated to one or more stations of a certain type is given a certain bandwidth (e.g., a subband allocated to an IoT device may be given a smaller bandwidth than a subband allocated to other uses or device types).
At 510, one or more device identifiers may be determined for association with a sub-band, wherein the determination of the one or more device identifiers is based on sub-band allocation parameters. For example, a determination of one or more device identifiers to associate with a sub-band may be made by access point 105 (e.g., at channel allocation module 410). In an embodiment, channel allocation module 410 may select an identifier associated with a particular station or one or more identifiers associated with a group of stations to associate with a particular sub-band. For example, one or more identifiers may be selected such that a particular station or group of stations is designated for communication on a particular sub-band. In an embodiment, a determination may be made that a device class is to be associated with a particular sub-band. For example, channel assignment module 410 may select an identifier (e.g., a device type identifier, a service type identifier, etc.) associated with a device class, wherein devices falling within the device class (e.g., devices having an identifier matching the selected identifier) are designated for communication with access point 105 on a particular sub-band. Station 110 may generally be capable of communicating across the normal wireless frequency band, or station 110 may be advantageously designed to operate within a desired sub-band assignment. The frequency bandwidth of station 110 is expected to affect the station identifier transmitted with its communication.
At 515, a bandwidth of the sub-band may be determined based on the sub-band allocation parameter. For example, the bandwidths for the sub-bands may be determined by the access point 105 (e.g., at the channel allocation module 410). In an embodiment, the bandwidth for a sub-band may be determined based on stations designated for communication on the sub-band, and the bandwidth for the sub-band may be determined according to a sub-band allocation parameter. The subband allocation parameter may indicate that one or more certain stations are to be designated for communicating on a narrower subband than one or more other stations are designated for communicating on. For example, the sub-bands allocated for delivering communications between the access point 105 and the one or more IoT devices may be given narrower bandwidths than the sub-bands allocated for delivering communications between the access point 105 and the one or more video devices.
At 520, a determination may be made whether one or more other sub-bands are to be associated with one or more device identifiers. For example, a determination may be made by the access point 105 (e.g., at the channel allocation module 410) whether one or more other sub-bands are to be associated with one or more device identifiers. In embodiments, the determination of whether one or more other sub-bands are to be associated with one or more device identifiers may be based on one or more sub-band allocation parameters, user input to a decision to associate another sub-band with one or more identifiers, or other factors.
If a determination is made at 520 to associate another sub-band with one or more other identifiers, process 500 may return to 510, where one or more device identifiers may be selected for association with another sub-band.
If at 520, no determination is made to associate another sub-band with one or more other identifiers, process 500 may proceed to 525. At 525, the assignment of sub-bands may be saved to the device identifier. For example, the assignment of sub-bands can be saved to the device identifier at the access point 105 (e.g., at the channel assignment module 410).
Fig. 6 is a flow diagram illustrating an example process 600 that is operable to facilitate assigning stations to allocated subbands of a spectrum. In an embodiment, access point 105 of fig. 1 may control the assignment of stations (e.g., stations 110 of fig. 1) to particular sub-bands. Process 600 may begin at 605 when an association request is received from a station. The association request may be received at the access point 105 (e.g., by the station identification module 415 of fig. 4).
At 610, a station from which an association request is received can be identified. For example, a station may be identified by the access point 105 (e.g., by the station identification module 415). In an embodiment, the station identification module 415 may identify the station by retrieving an identifier (e.g., an association request) carried by a communication received from the station. For example, the identifier may include a station-specific identifier (e.g., a Media Access Control (MAC) address), one or more configuration parameters associated with the station, a usage or service type associated with the received communication, a device type identifier associated with the station, and other identifiers.
At 615, a determination may be made whether the station from which the association request was received is designated to use a certain sub-band (e.g., channel). For example, a determination may be made by the access point 105 (e.g., by the station discrimination module 415) whether a station is designated to use a certain sub-band. In an embodiment, the station identification module 415 may compare the retrieved identifier associated with the station to one or more identifiers designated for using a certain sub-band. For example, the association between the device identifier and the sub-band may be stored at the access device 105 (e.g., at the channel assignment module 410 of fig. 4), and the station identification module 415 may search for the retrieved identifier among the identifiers stored at the access device 105. In an embodiment, the station discrimination module 415 may utilize a two-step process to determine whether a station is designated to use a certain sub-band. First, the station identification module 415 may determine whether a station belongs to a device class. For example, the station identification module 415 may compare an identifier retrieved from a communication received from a station to one or more identifiers associated with one or more device categories (e.g., categories including device type, service type, etc.). The station may advertise an identifier indicating communication preferences, such as a desired sub-band or sub-bandwidth that the station discrimination module 415 may associate with one or more device classes. If the station identification module 415 determines that a station is associated with a device class, the station may be added to the device class and the station may be designated for communication on a sub-band associated with the device class. For example, station discrimination module 415 may add an identifier associated with a station to a class of devices designated for communication on a particular sub-band.
If at 615 a determination is made that a station is designated to use a certain sub-band, process 600 may proceed to 620. At 620, the station may be instructed to switch to a particular sub-band (e.g., channel). The instruction to switch to a particular sub-band may be output to the station, for example, from the access point 105 (e.g., from the station identification module 415). In an embodiment, the instructions may identify a particular sub-band on which a station is designated to communicate with the access point 105.
If at 615 a determination is made that a station is not designated to use a certain sub-band, process 600 may proceed to 625. At 625, an available subband (e.g., channel) may be selected for use by the station. For example, the available subbands may be selected by the access point 105 (e.g., by the station discrimination module 415). In an embodiment, the selected subbands may be subbands designated for one or more unknown stations that have not otherwise been designated for using the particular subbands. In other embodiments, a station may be identified as a station that does not support sub-band assignments. Stations that are unable to support subband assignments may be directed to use channel assignments designated for such stations (e.g., legacy stations).
At 630, the station may be instructed to switch to the selected sub-band (e.g., channel). An instruction to switch to the selected sub-band may be output to the station, for example, from the access point 105 (e.g., from the station identification module 415). In an embodiment, the instructions may identify a sub-band designated for the selected station to communicate with the access point 105 on.
At 635, configuration information associated with the particular/selected sub-band may be output to the station. Configuration information associated with the sub-bands may be output, for example, by access point 105 (e.g., by station discrimination module 415) to a station (e.g., station 110 of fig. 1). In embodiments, the configuration information may be output to the station as one or more configuration parameters included within the instructions output to the station (e.g., instructions output to the station at 620 or 630). Configuration information associated with a certain/selected sub-band may include various authentication options, encryption options, and other options.
At 640, the contention window setting may be updated according to the designation of stations for communication on the particular/selected sub-band. For example, the contention window setting may be updated at the access point 105 (e.g., at the channel assignment module 410). In an embodiment, the contention window setting may be updated to schedule one or more transmission opportunities for a station to communicate on a particular/selected subband.
Fig. 7 is a block diagram of a hardware configuration 700 operable to facilitate allocation of one or more channels to one or more preferred stations. It should be understood that hardware configuration 700 may exist in various types of devices. Hardware configuration 700 may include a processor 710, a memory 720, a storage device 730, and an input/output device 740. For example, each of the components 710, 720, 730, and 740 may be interconnected using a system bus 750. Processor 710 is capable of processing instructions for execution within hardware configuration 700. In one implementation, the processor 710 may be a single-threaded processor. In another implementation, the processor 710 may be a multi-threaded processor. Processor 710 may be capable of processing instructions stored in memory 720 or on storage device 730.
In some implementations, storage 730 may be capable of providing mass storage for hardware configuration 700. In one implementation, the storage device 730 may be a computer-readable medium. In various different embodiments, storage device 730 may comprise, for example, a hard disk device, an optical disk device, flash memory, or some other mass storage device. In other embodiments, storage 730 may be a device external to hardware configuration 700.
Input/output device 740 provides input/output operations for hardware configuration 700. In embodiments, the input/output devices 740 may include one or more of a network interface device (e.g., an ethernet card), a serial communication device (e.g., an RS-232 port), one or more Universal Serial Bus (USB) interfaces (e.g., a USB 2.0 port), and/or a wireless interface device (e.g., an 802.11 card). In embodiments, the input/output devices may include driver devices configured to send and receive communications to and from one or more stations 110 and/or one or more networks (e.g., subscriber networks, WANs, LANs, etc.) of fig. 1.
Those skilled in the art will appreciate that the present invention improves upon methods and apparatus for allocating a communication medium to stations. Methods, systems, and computer readable media may be operable to facilitate allocation of one or more channels to one or more preferred stations. The access point may be configured to allocate usage of one or more sub-bands of the spectrum to one or more stations. One or more subbands may be assigned to one or more preferred stations to create multiple virtual networks provided by the access point. The virtual network provided by the access point may support different authentication and encryption options. The access point may communicate with multiple stations simultaneously by transmitting and/or receiving communications simultaneously on different subbands.
The subject matter of the present disclosure and its components may be implemented by instructions that, when executed, cause one or more processing devices to perform the processes and functions described above. Such instructions may include, for example, interpreted instructions such as script instructions, e.g., javaScript or ECMAScript instructions, or executable code, or other instructions stored in a computer-readable medium.
Implementations of the subject matter and the functional operations described in this specification can be provided in digital electronic circuitry, or in computer software, firmware, or hardware, including the structures disclosed in this specification and their structural equivalents, or in combinations of one or more of them. Embodiments of the subject matter described in this specification can be implemented as one or more computer program products, i.e., one or more modules of computer program instructions encoded on a tangible program carrier for execution by, or to control the operation of, data processing apparatus.
A computer program (also known as a program, software application, script, or code) can be written in any form of programming language, including compiled or interpreted languages or declarative or procedural languages, and it can be deployed in any form, including as a stand-alone program or as a module, component, subroutine, or other unit suitable for use in a computing environment. A computer program does not necessarily correspond to a file in a file system. A program can be stored in a portion of a file that holds other programs or data (e.g., one or more scripts stored in a markup language document), in a single file dedicated to the program in question, or in multiple coordinated files (e.g., files that store one or more modules, sub programs, or portions of code). A computer program can be deployed to be executed on one computer or on multiple computers that are located at one site or distributed across multiple sites and interconnected by a communication network.
The processes and logic flows described in this specification are performed by one or more programmable processors executing one or more computer programs to perform functions by operating on input data and generating output to bind the process to a particular machine (e.g., a machine programmed to perform the processes described herein). The processes and logic flows can also be performed by, and apparatus can also be implemented as, special purpose logic circuitry, e.g., an FPGA (field programmable gate array) or an ASIC (application-specific integrated circuit).
Computer-readable media suitable for storing computer program instructions and data include all forms of non-volatile memory, media and memory devices, including by way of example semiconductor memory devices (e.g., EPROM, EEPROM, and flash memory devices); magnetic disks (e.g., internal hard disks or removable disks); magneto-optical disks; and CD ROM and DVD ROM disks. The processor and the memory can be supplemented by, or incorporated in, special purpose logic circuitry.
While this specification contains many specific implementation details, these should not be construed as limitations on the scope of any inventions or of what may be claimed, but rather as descriptions of features that may be specific to particular embodiments of particular inventions. Certain features that are described in this specification in the context of separate embodiments can also be implemented in combination in a single embodiment. Conversely, various features that are described in the context of a single embodiment can also be implemented in multiple embodiments separately or in any suitable subcombination. Moreover, although features may be described above as acting in certain combinations and even initially claimed as such, one or more features from a claimed combination can in some cases be excised from the combination, and the claimed combination may be directed to a subcombination or variation of a subcombination.
Similarly, while operations are depicted in the drawings in a particular order, this should not be understood as requiring that such operations be performed in the particular order shown or in sequential order, or that all illustrated operations be performed, to achieve desirable results. In some cases, multitasking and parallel processing may be advantageous. Moreover, the separation of various system components in the embodiments described above should not be understood as requiring such separation in all embodiments, and it should be understood that the described program components and systems can generally be integrated together in a single software product or packaged into multiple software products.
Specific embodiments of the subject matter described in this specification have been described. Other embodiments are within the scope of the following claims. For example, unless explicitly stated otherwise, the actions recited in the claims can be performed in a different order and still achieve desirable results. As one example, the processes depicted in the accompanying figures do not necessarily require the particular order shown, or sequential order, to achieve desirable results. In some embodiments, multitasking and parallel processing may be advantageous.
Claims (19)
1. A method of distribution, comprising:
receiving wireless communications at an access point, wherein the wireless communications are received from a station, and wherein the access point is configured to communicate over one or more predefined frequency spectrums;
retrieving a station identifier from the wireless communication;
comparing the station identifier to one or more identifiers designated for one or more particular sub-bands within a defined channel of a predefined spectrum on which the access point is configured to communicate;
outputting a communication to the station when the retrieved station identifier matches an identifier associated with a sub-band of a predefined spectrum on which the access point is configured to communicate, wherein the communication indicates that the station communicates with the access point on the sub-band associated with the station identifier; and
allocating a particular bandwidth to the sub-band, the allocation being determined at the access point based on one or more sub-band allocation parameters specifying that one or more stations are designated for communicating on a narrower sub-band than one or more other stations are designated for communicating; and
wherein the access point is configured to output a communication on the sub-band and at least one other sub-band simultaneously.
2. The method of claim 1, wherein the retrieved station identifier comprises a service type identifier.
3. The method of claim 1, wherein the retrieved station identifier comprises a device type identifier.
4. The method of claim 1, further comprising:
if the retrieved station identifier does not match an identifier associated with a sub-band of the spectrum on which the access point is configured to communicate, selecting an available sub-band of the spectrum and outputting a communication to the station, wherein the communication indicates that the station communicates with the access point on the selected sub-band.
5. The method of claim 1, wherein the communication comprises configuration information associated with the sub-band associated with the station identifier.
6. The method of claim 1, wherein the spectrum on which the access point is configured to communicate is partitioned into at least two sub-bands.
7. The method of claim 6, wherein the access point is configured to communicate with one or more stations simultaneously on each of the at least two sub-bands.
8. The method of claim 1, further comprising:
determining that the retrieved station identifier is associated with a device class, wherein the device class is designated for communication on a particular sub-band of the spectrum; and is provided with
Wherein the communication instructs the station to communicate with the access point on the particular sub-band.
9. An access point, comprising:
an interface configured to receive wireless communications from a station and to transmit and receive communications over one or more predefined frequency spectrums; and
one or more modules configured to:
retrieving a station identifier from the wireless communication;
comparing the station identifier to one or more identifiers designated for one or more particular sub-bands of a defined channel of a predefined spectrum;
outputting a communication to the station when the retrieved station identifier matches an identifier associated with a sub-band of a predefined spectrum, wherein the communication instructs the station to communicate with the access point on the sub-band associated with the station identifier; and is provided with
Allocating a particular bandwidth to the sub-band, the allocation determined at the access point based on one or more sub-band allocation parameters specifying that one or more stations are designated for communicating on a narrower sub-band than one or more other stations are designated for communicating; and
wherein the access point is configured to output a communication on the sub-band and at least one other sub-band simultaneously.
10. The access point of claim 9, wherein the retrieved station identifier comprises a service type identifier.
11. The access point of claim 9, wherein the retrieved station identifier comprises a device type identifier.
12. The access point of claim 9, wherein the spectrum on which the access point is configured to communicate is partitioned into at least two sub-bands, and wherein the access point is configured to communicate with one or more stations simultaneously on each of the at least two sub-bands.
13. One or more non-transitory computer-readable media having instructions operable to cause one or more processors to perform operations comprising:
receiving wireless communications at an access point, wherein the wireless communications are received from a station, and wherein the access point is configured to communicate over one or more predefined frequency spectrums;
retrieving a station identifier from the wireless communication;
comparing the station identifier to one or more identifiers designated for one or more particular sub-bands of a defined channel of a predefined spectrum on which the access point is configured to communicate;
outputting a communication to the station when the retrieved station identifier matches an identifier associated with a sub-band of a predefined spectrum on which the access point is configured to communicate, wherein the communication indicates that the station communicates with the access point on the sub-band associated with the station identifier; and
allocating a particular bandwidth to the sub-band, the allocation determined at the access point based on one or more sub-band allocation parameters specifying that one or more stations are designated for communicating on a narrower sub-band than one or more other stations are designated for communicating; and
wherein the access point is configured to output a communication on the sub-band and at least one other sub-band simultaneously.
14. The one or more non-transitory computer-readable media of claim 13, wherein the retrieved station identifier comprises a service type identifier.
15. The one or more non-transitory computer-readable media of claim 13, wherein the retrieved station identifier comprises a device type identifier.
16. The one or more non-transitory computer-readable media of claim 13, wherein the instructions are further operable to cause one or more processors to perform operations comprising:
if the retrieved station identifier does not match an identifier associated with a sub-band of the spectrum on which the access point is configured to communicate, selecting an available sub-band of the spectrum and outputting a communication to the station, wherein the communication indicates that the station communicates with the access point on the selected sub-band.
17. The one or more non-transitory computer-readable media of claim 13, wherein the communication includes configuration information associated with the sub-band associated with the station identifier.
18. The one or more non-transitory computer-readable media of claim 13, wherein the spectrum over which the access point is configured to communicate is partitioned into at least two sub-bands.
19. The one or more non-transitory computer-readable media of claim 18, wherein the access point is configured to communicate with one or more stations simultaneously on each of the at least two sub-bands.
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